HR-pyPopStar: high wavelength-resolution stellar populations evolutionary synthesis model

Abstract

We present the HR-pyPopStar model, which provides a complete set (in ages) of high resolution (HR) Spectral Energy Distributions of Single Stellar Populations. The model uses the most recent high wavelength-resolution theoretical atmosphere libraries for main sequence, post-AGB/planetary nebulae and Wolf-Rayet stars. The Spectral Energy Distributions are given for more than a hundred ages ranging from 0.1 Myr to 13.8 Gyr, at four different values of the metallicity (Z = 0.004, 0.008, 0.019 and 0.05), considering four different IMFs. The wavelength range goes from 91 to 24 000 Å in linear steps δλ = 0.1 Å, giving a theoretical resolving power R_{th,5000} ~ 50 000 at 5000 Å. This is the main novelty of these spectra, unique for their age and wavelength ranges. The models include the ionising stellar populations that are relevant both at young (massive hot stars) as well as old (planetary nebulae) ages. We have tested the results with some examples of HR spectra recently observed with MEGARA at GTC. We highlight the importance of wavelength-resolution in reproducing and interpreting the observational data from the last and forthcoming generations of astronomical instruments operating at 8-10m class telescopes, with higher spectral resolution than their predecessors.

arXiv comment24 pages, 17 figures

References in corpus (71)

• Stellar population synthesis at the resolution of 2003
• PARSEC: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code
• Starburst99: Synthesis Models for Galaxies with Active Star Formation
• Correcting for the Effects of Interstellar Extinction
• A grid of MARCS model atmospheres for late-type stars I. Methods and general properties
• Evolutionary tracks and isochrones for low- and intermediate-mass stars: from 0.15 to 7 M_sun, and from Z=0.0004 to 0.03
• Evolutionary population synthesis: models, analysis of the ingredients and application to high-z galaxies
• The propagation of uncertainties in stellar population synthesis modeling I: The relevance of uncertain aspects of stellar evolution and the IMF to the derived physical properties of galaxies
• The Initial Mass Function of Stars: Evidence for Uniformity in Variable Systems
• MILES: A Medium resolution INT Library of Empirical Spectra
• Theoretical isochrones in several photometric systems I. Johnson-Cousins-Glass, HST/WFPC2, HST/NICMOS, Washington, and ESO Imaging Survey filter sets
• The Galactic disk mass function: reconciliation of the HST and nearby determinations
• Evolutionary Stellar Population Synthesis with MILES. Part I: The Base Models and a New Line Index System
• A standard stellar library for evolutionary synthesis: I. Calibration of theoretical spectra
• Intrinsic iron spread and a new metallicity scale for Globular Clusters
• PARSEC evolutionary tracks of massive stars up to $350M_{\odot }$ at metallicities 0.0001$\le Z\le$0.04
• UV-extended E-MILES stellar population models: young components in massive early-type galaxies
• The Ages of 55 Globular Clusters as Determined Using an Improved delta V_TO^HB Method Along with Color-Magnitude Diagram Constraints, and Their Implications for Broader Issues
• The ACS Survey of Galactic Globular Clusters. IX. Horizontal Branch Morphology and the Second Parameter Phenomenon
• The Effects of Stellar Rotation. II. A Comprehensive Set of Starburst99 Models
• A library of high resolution synthetic stellar spectra from 300nm to 1.8 micron with solar and alpha-enhanced composition
• Evolutionary stellar population synthesis with MILES - II. Scaled-solar and α-enhanced models
• Stellar population models at high spectral resolution
• Evolutionary synthesis of galaxies at high spectral resolution with the code PEGASE-HR
• An extensive library of 2500-10500 Ang synthetic spectra
• Empirical calibration of the near-IR Ca II triplet - I. The stellar library and index definition
• Evolutionary Stellar Population Synthesis at High Spectral Resolution: Optical Wavelengths
• Spectral synthesis including massive binaries
• A Library of Theoretical Ultraviolet Spectra of Massive, Hot Stars for Evolutionary Synthesis
• MIUSCAT: extended MILES spectral coverage. I. Stellar populations synthesis models
• The Abundances of Neutron Capture Species in the Very Metal-Poor Globular Cluster M15: An Uniform Analysis of RGB and RHB Stars
• Recovering galaxy star formation and metallicity histories from spectra using VESPA
• Counting Low-Mass Stars in Integrated Light
• Theoretical isochrones in several photometric systems II. The Sloan Digital Sky Survey ugriz system
• The Galactic WC stars: Stellar parameters from spectral analyses indicate a new evolutionary sequence
• A grid of synthetic ionizing spectra for very hot compact stars from NLTE model atmospheres
• Modeling the color evolution of luminous red galaxies - improvements with empirical stellar spectra
• A new library of theoretical stellar spectra with scaled-solar and alpha-enhanced mixtures
• Flux-calibrated stellar population models of Lick absorption-line indices with variable element abundance ratios
• Radial variations in the stellar initial mass function of early-type galaxies
• Empirical calibration of the near-IR CaII triplet - IV. The stellar population synthesis models
• Spectral models for solar-scaled and alpha-enhanced stellar populations
• Metal-rich, Metal-poor: Updated Stellar Population Models for Old Stellar Systems
• A High-Resolution Stellar Library for Evolutionary Population Synthesis
• On the consistent treatment of the quasi-hydrostatic layers in hot star atmospheres
• PopStar I: Evolutionary synthesis models description
• A New Stellar Atmosphere Grid and Comparisons with HST/STIS Calspec Flux Distributions
• The AMBRE project: A new synthetic grid of high-resolution FGKM stellar spectra
• UVBLUE: a new high-resolution theoretical library of ultraviolet stellar spectra
• SDSS-IV MaStar -- A Large and Comprehensive Empirical Stellar Spectral Library: First Release
• EzGal: A Flexible Interface for Stellar Population Synthesis Models
• A large stellar evolution database for population synthesis studies. IV. Integrated properties and spectra
• The Extended IRTF Spectral Library: Expanded coverage in metallicity, temperature, and surface gravity
• Confidence limits of evolutionary synthesis models. IV Moving forward to a probabilistic formulation
• PoWR grids of non-LTE model atmospheres for OB-type stars of various metallicities
• Stellar population models based on the SDSS-IV MaStar library of stellar spectra. I. Intermediate-age/old models
• Modelling ultraviolet-line diagnostics of stars, the ionized and the neutral interstellar medium in star-forming galaxies
• Pégase.3: A code for modeling the UV-to-IR/submm spectral and chemical evolution of galaxies with dust
• Grids of ATLAS9 Model Atmospheres and MOOG Synthetic Spectra
• To use or not to use synthetic stellar spectra in population synthesis models?
• PopStar Evolutionary Synthesis Models II: Optical emission-line spectra from Giant H{\sc ii} regions
• Calcium Triplet Synthesis
• Mg and TiO spectral features at the near-IR: Spectrophotometric index definitions and empirical calibrations
• High-resolution MEGARA IFU spectroscopy and structural analysis of a fast-rotating, disky bulge in NGC 7025
• POPSTAR Evolutionary Synthesis Models III: Photometric properties of young star clusters and mixed populations
• MEGARA-IFU detection of extended HeII4686 nebular emission in the central region of NGC1569 and its ionization budget
• Prospects for population synthesis in the H band: NeMo grids of stellar atmospheres compared to observations
• The Impact of Starbursts and Post-Starbursts on the Photometric Evolution of High Redshift Galaxies
• MEGARA-GTC Stellar Spectral Library (I)
• High Resolution Spectral Line Indices Useful for the Analysis of Stellar Populations
• MEGARA-GTC Stellar Spectral Library (II). MEGASTAR First Release

Cited by in corpus (15)

• Inferring the presence of very massive stars in local star-forming regions
• pySTARBURST99: The Next Generation of STARBURST99
• Surface chemical composition of single WNh stars
• X-Shooting ULLYSES: Massive Stars at Low Metallicity: XI. Pipeline-determined Physical Properties of Magellanic Cloud OB Stars
• Stellar Populations in type Ia supernova host galaxies at intermediate-high redshift: Star formation and metallicity enrichment histories
• Polynomial expansion of the star formation history in galaxies
• Cloudy-Maraston: Integrating nebular continuum and line emission with the Maraston stellar population synthesis models
• Search strategies for supermassive stars in young clusters and application to nearby galaxies
• Predicting interstellar radiation fields from chemical evolution models
• MEGASTAR (III). Stellar parameters and data products for DR1 late-type stars
• A study of 1000 galaxies with unusually young and massive stars in the SDSS: a search for hidden black holes
• Extragalactic globular cluster near-infrared spectroscopy: I. Integrated near-infrared spectra of Centaurus A/NGC 5128
• Sub-percentage measure of distances to redshift of 0.1 by a new cosmic ruler
• Implication of a galaxy-scale negative feedback by one of the most powerful multi-phase outflows in a hyper-luminous infrared galaxy at the intermediate redshift
• HR-pyPopStar II: high spectral resolution evolutionary synthesis models low metallicity expansion and the properties of the stellar populations of dwarf galaxies